Gustavus a



mish tense GUSTAVUS A. JASPEE, OF GHARLESTOWN, MASSACHUSETTS.

` Letters Patent No. 63,390, dated Aprl 2, 1867.

IMPEOVD APPARATUS FOB SIFTING AND SE'PAEATING SUGAR.

%te %dmth metrsh il] in flgese tettns %shut mh'nmtiug part nt the same.

TO ALL PERSONS TO WHOM PRESENTS SHALL COME:

Be it known that I, GUSTAVUS A. JASPER, of Oharlestown, in the county ofMiddlesex, and State of Massachusetts, have made a new and usefulinvention having reference to the Sifting of Sugar or other material;and I do hereb declare the same tobe fnlly described in the followingspecificntion and represented inthe uccompanying drawings, of which-Figu'e 1 is a top view.

Figure 2, a vertical and longitudinol section of my new and useful orimproved sitting apparetus or mechanism. r

Figure 3 is :i vertical and transverse section of it.

It consists of n peculiar arrungement of reciprocating sicves,discherging-chutes and sponts, and mechanism for imparting to each ofsuch sieves a. vibratory or :reciprocating motion.

The object of the invention is to separate the coarser from the fine'portions of the suga' so as to prevent the fine flur or dust of'thesugar from oongregnting on and adhering to such coarsor portion. This Iaccomplish by first screening from the mass and removing from thesitting-box or chnmbe' the lunps 01' coarser portions of the suger,leaving the finer or finest portions to he last removed froni the saidbox or ease.

In the drawings, A. denotes an upright box or case provided with nnopening, a, in its top, to which opening u hopper, 01' its equivalent,to contain the sugar to be screene d, is to be applied. Below the hopperis a series of sieves, B C D, one being a'renged underneath the other,as shown in the clrawings. The frame b of each sieve is open at one endand closed at the other, the open end being Situated over the mouth ofone ofn series of dischnrging-spouts, E F G, which leads out of the box.One of the spouts leads out of one side, while the next one leads out ofthe opposite side of such box, as shown in the drnwings. Besides thespout, to each of the sieves there is one of a. series of inclinedplanes or chutes, H I K, the snuc serving, in connection with one of useries of partitions or fioors, L M, to receive the material disohnrgedthrough the moshes of the sieve and convey it into the eppe' port ofthenext sieve below. The lowermost plnneK discha-rges through theside ofthe box or case A. Each sieve is nrranged sonewhut inclined to thehorizon, and is Suspended to the opposte sides of the box A by means otrods or hongers c c, so as to be cepnble of being swung or movedlengthwise back and forth. For the purpose of so moving euch sieve ithas one of a series of connecting-rods, d d d, jointcd to it, such rodalso beingjointed to one of a series of bell-cranks, e e' e", ofhorizontal shafts ff'f", arranged as represented in the (lrewings. Eachof such shnfts hns one of n series of pulleys, gg g, fixed upon it.Endless bands h i extencl from and around the middle one of thesepulleys, to and about the other pulleys g g", us shown in the (lmwings,the same being so that when the shaft of the pulley g' is put inrevolution rotnry motion m ay be impurted to euch of the other sha-t'teff.

In the operation of the said sifting apparutus the coarsest lumps of thesugur will be dischnrged from the end oi' the upper sieve, such po'tionsus may be able to pass through the meshes of such sieve being caused tofall upon the inelinerl plane below it, and by such be directed into theupper port of the next sieve. The coarser portions of the muss, or suches cannot go through the meshes of the second sieve, will flow out ofits open end, while the rest will go through the sieve, and by the chutebelow it will be dischnrged upon the upper part of the thir& sieve. From'the last sieve the conrser po'tions of the mass will be dischnrged atits open end, the fine', oi' powder, going through the meshes and beingdischnrged out of the box. By this mode of sitting we avoid much of thewen-r and abrasion of the larger masses, lumps, or crystals of sugar,and are enabled to remove them from the mass with little or noaccumnlnton of powder or sugar upon them. Each sieve box is to beconstructed with grooves Zlin its opposite sides to receive the sieve,which is to slide into such grooves as a &tower does into its frame, thesame being so ;s to enable the sieve to be removed from the frnme andanother glove, of either larger or finer moshes to bc substituted forit, as occasion muy require.

I claim the arrungement of ehutes, sicves, dischargingspouts, andmechnnismfo' Operating such sicves sub` ctentially as described. I i

GUSTAVUS A. JASPER.

Witnesses:

R. H. Ennr,

L. MLLER.

